Cultivator.



J W. SIVLEY.

CULTIVATOR.

APPLICATION HLED JAN. 30. 1917.

I Patented Mar. 19,1918.

2 SHEETS-SHEET I.

ATTORNEY J. W. SIVLEY.

CULTIVATOR.

APPLICATION FILED JAN. 30. 1917.

1,26Q,Q79. Patented Mar. 19, 1918.

2 SHEET$-SHEET 2- WITN ESSE.S j;

ATTORNEY JOSEPH 1V. SIVLEY, OF TRINITY, ALABAMA.

GULTIVATOB.

Specification of Letters Patent.

Patented Mar. 19, 1918.

Application filed. January 30, 1917. Serial No. 145,473.

T 0 all whom it may concern:

Be it known that I, JOSEPH W. SIVLEY, a citizen of the United States,residing at Trinity, in the county of Morgan and State of Alabama, haveinvented new and useful Improvements in Cultivators, of which thefollowing is a specification.

This invention relates to cultivators, and it has particular referenceto that class of cultivators in which tooth carrying arms are pivotallymounted on a central longitudinal beam, said arms being also providedwith joints in the end of the hinges, means being provided for adjustingthe arms pivotally and also hingedly in order that the machine may beadapted for use on ridges or in the beds or hollows between the ridges,as may be required.

The invention has for its object to sinr plify and improve the generalconstruction of a cultivator of the kind or type above re ferred to.

A further object of the invention is to sim plify and improve theadjusting means whereby the tooth carrying arms are adjusted in variousways with respect to the central frame beam.

With these and other ends in view which will readily appear as thenature of the invention is better understood, the same consists in theimproved construction and novel arrangement and combination of partswhich will be hereinafter fully described and particularly pointed outin the claims.

In the accompanying drawings has been illustrated a simple and preferredform of the invention, it being, however, understood that no limitationis necessarily made to the precise structural details therein exhibited,but that changes, alterations and modifications within the scope of theclaims may be resorted to when desired.

In the drawings,

Figure 1 is a top plan view of a cultivator constructed in accordancewith the invention.

Fig. 2 is a front view of the same showing the tooth carrying armsadapted to 0perate on a ridge.

Fig. 3 is a central longitudinal sectional view taken 011 the line 3 3in Fig. 1.

Fig. 4 is a transverse sectional view taken on the line 4-4= in Fig. land showing the tooth carrying arms adapted to operate in a hollowbetween ridges.

Corresponding parts in the several figures of the drawings are denotedby like characters of reference.

The centrally disposed longitudinal frame beam 15 is provided with anupwardly extending rack bar 16, said bar extending through a housing 17having a sleeve 18 in which is located a springactuated dog or latchmember that engages the rack bar 16 thereby supporting the housing 17 inposition at various adjustments with respect to the rack bar. Thehousing 17 is provided with oppositely disposed cars 20.

Any desired number of tooth carrying arms may be used in connection withthe central beam. In the accompanying drawings there has been showntwo-such arms at each side of the beam, said arms being designated by Aeach of said arms being com posed of two members, viz., an inner member21 and an outer member 22. The inner and outer members of each arm arehingedly connected together by a bolt or pivot member 23. The innermembers of the arms at the two sides of the machine are pivotallyconnected with the beam 15 by bolts or pivot members 24, the said innerend members be ing overlapped beneath the beam as will be clearly seenin the drawings. The outer end members 22 of the arms at each side ofthe machine are serially connected by connect ing bars 25, the members22 and the bars 25 being connected together by pivots 26. The connectingbars 25 at the two sides of the machine are connected with the ears 20of the housing 17 by means of connecting rods 27. The beam 15 isprovided with longitudinally disposed flanges 28, one at each sidethereof, each of said flanges being provided with numerous apertures 29,each of said flanges being connected with one of the bars 25 by means ofa rod 30 each of said rods being provided at one end with an eye 31engaging one of the pivots 26 and each of said rods being provided atits other end with a hook 32 engaging one of the apertures 29, it beingevident that by adjusting the hooks 32 in various apertures 29 theangular relation of the arms A with respect to the beam 15 may bevaried, said arms being free to swing aboutthe axes of the pivot bolts24 whereby they are connected with the beam.

For the purpose of effecting adjustment of the arms A or, properlyspeaking, of the outer end members 22 of said arms in the verticalplanes wherein they are located, the

dog or latch member 19 is withdrawn from engagement with the teeth ofthe rack bar 16, thus enabling the housing 17 to be adjusted verticallywith respect to the rack, and thereby causing the outer ends of themembers 22 to be moved upwardly or down wardly, as the case may be..When the desired adjustment has been effected the dog or latch member19 is permitted to spring back in engagement with the rack bar 16,thereby retaining the parts in adjusted position.

The arms A of the device are to be equipped with teeth 33 which may beof any desired kind or construction. Said teeth may also be connectedwith the arms in any convenient well known manner. The beam 15 is to beprovided at its forward end with means such as a clevis 34 for theattachment of the draft.

Having thus described the invention, what is claimed as new is:

1. In a cultivator, a beam having an upwardly extending member, ahousing adjustable thereon, a pivot member extending vertically throughthe beam, tooth carrying arms mounted on said pivotmember, each of saidarms being composed of hingedly connected inner and outer portions, theouter portions adapted for swinging movement in a substantially verticalplane, links connecting the outer portions of the tooth carrying armswith the housing, and means for limiting the swinging movement of thetooth carrying arms with respect to the vertical pivot member.

2. In a cultivator, a beam having an upwardly extending member, ahousing adjustable. thereon, a pivot member extending vertically throughthe beam, tooth carrying arms mounted on said pivot member, each of saidarms being composed of hingedly connected inner and outer portions, theouter portions adapted for swinging movement in a substantially verticalplane, links connecting the outer portions of the tooth carrying armswith the housing, apertured flanges at the sides of the beam, and linksadjustably' connecting said flanges with the tooth carrying arms tol1m1t the swingmg movement thereof with respect to the vertlcal pivot.

In testimony whereof I affix my signature.

JOSEPH W. SIVLEY.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patentv Washington, D. C.

